Detail 01
x-backbore
The widest backbore in this group. It blows very freely, so control comes from you rather than from the mouthpiece.
Product detailSKU #1275776904229
SchilkeStandard Series Cornet Mouthpiece Group I in Silver 14A4x Silver
1/8
Independent shopping perspective
The Korena take
Schilke 14A4x cornet mouthpiece: .673 inch cup, shallow A cup, number 4 semi-flat rim, and the wide x-backbore for a very open blow.
Strong match
Who this is for
- 14A4a players who find the tight a-backbore too resistant
- Upper-register playing where a shallow cup keeps notes close
- Piccolo trumpet, where the x-backbore eases the blow
Consider the trade-offs
When to look elsewhere
- Players wanting a deep, round cornet tone from a funnel cup
- Trumpet receivers — this is a cornet shank
- Developing players still building core tone on a standard cup
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
.673 inch (17.09mm) cup diameter
One of the wider diameters in this cornet group, so it does not pinch the way a small lead size can.
Detail 03
Shallow A cup
Less cup volume brightens the sound and brings the upper register closer, with less low-end weight.
Detail 04
Number 4 semi-flat rim
A wide, flattish rim spreads pressure across the lip for endurance, trading away some flexibility.
Detail 05
27 throat
Slightly wider than the 26 throats used across most of this group, letting a bit more air through.
Detail 06
Cornet shank
Seats in a cornet receiver. It will not fit a standard Bb trumpet, which takes a longer, different taper.
Final check
Know before you order
- 01Mouthpiece only — no pouch or case
- 02Check whether your horn takes a cornet or trumpet shank before ordering
- 03Coming from a 14A4a, expect the same rim with far less back pressure
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What is the difference between the 14A4, 14A4a, and 14A4x?
Same .673 inch cup and 27 throat. The 14A4a has the tight a-backbore for resistance and range, the 14A4 a standard c-backbore for a more open feel, and the 14A4x the largest, freest backbore.
02Will this fit my trumpet?
No. It is a cornet mouthpiece. The x-backbore is also used on piccolo trumpet, where it improves ease of playing and opens the sound.
03Which Schilke cornet mouthpiece gives a rounder, darker tone?
Look at the funnel cups instead — the 11E has a large funnel cup for a big round tone, and the 8E2 a deep funnel cup that stays flexible in all registers.
04Is a shallow cup only for lead playing?
It favors the upper register and a brighter sound, but the wide backbore here keeps the blow open rather than tight, so it is less specialized than a small-diameter lead piece.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
5 detailsOther
- Category Source
- detail
- Tier
- new
- Korena Special
- false
- Source Id
- site51275776904229
- Prop65
- WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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